Perhaps you should try some spelling variations:
thanh truong » thanh thuong, thanh tung, thanh huong
thanh trung » thanh tung
trong luan » truong luan, tong luan, trong quan
hieu lang » chieu sang, hieu quang, nhieu tang
ung trong » dung trong, cung trong, vung trong
ho hieu » ho chieu, hoi hieu, nho hieu
cao ung » cao dung, cac ung, cho ung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((thanh truong) OR (thanh trung)) cao ung trong luan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - ((thanh truong) OR (thanh trung)) cao ung trong luan van ban*".